One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9)(4,8)(5,6)(7,10)(11,16)(12,14)(13,15)(17,18)(19,24)(20,26)(21,27)(22,29)(23,25)(28,32)(30,31)(33,34,38,42)(35,39,43,48)(36,40,46,45)(37,41,47,44)(2,6)(3,10)(8,14)(11,13)(17,19,23,21)(18,24,25,27)(20,29,30,28)(22,31,32,26)(35,43)(37,47)(39,48)(41,44)(4,12)(8,14)(11,13)(15,16)(18,25)(19,21)(26,31)(28,29)(33,35)(34,39)(36,41)(37,45)(38,43)(40,47)(42,48)(44,46) involution — undirected(1,3)(2,7)(4,13)(5,10)(6,9)(8,16)(11,12)(14,15)(17,20)(18,26)(19,28)(21,29)(22,27)(23,30)(24,32)(25,31)(33,35)(34,39)(36,41)(37,45)(38,43)(40,47)(42,48)(44,46) involution — undirected(1,4,5,12)(2,8,6,14)(3,11,10,13)(7,15,9,16)(17,21,23,19)(18,27,25,24)(20,29,30,28)(22,31,32,26)(33,36)(34,40)(35,44)(37,39)(38,46)(41,43)(42,45)(47,48)(1,2)(3,7)(4,8)(5,6)(9,10)(11,15)(12,14)(13,16)(17,22)(18,28)(19,26)(20,27)(21,31)(23,32)(24,30)(25,29)(33,37)(34,41)(35,45)(36,39)(38,47)(40,43)(42,44)(46,48) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.